Eventually, the prison was demolished, and Banner was set free – and so was his alter-ego. The Hulk wasted no time in confronting the red impostor, and even Uatu the Watcher came to observe the event before the Red Hulk punched him out. The Hulk quickly found out that the Red Hulk was unlike any foe he's ever faced before – more brutal, superb fighting skills and not easily intimidated. Red Hulk managed to break the Hulk’s arm, threaten him at gunpoint, and drop him in the water beneath the Golden Gate Bridge.
The titanic clash gained the attention of the God of thunder, Thor, and the Red Hulk swore the Asgardian would not defeat him. Thor gravely underestimated this new incarnation of the Hulk, and was beaten badly when the Red Hulk grabbed Mjolnir and jumped into orbit. In zero gravity, the Red Hulk was able to lift Thor's hammer and thrash Thor with it. Then the Red Hulk used Mjolnir to travel to the moon, and he left Thor defeated and stranded in a desolate area.